Needle-eye self-locking safety-pin.



H. B. HUDSON.

NEEDLE EYE SELF LOCKING SAFETY PIN. APPLIOATIOH FILED 11.11, 1912,

1,05 3,729, Patented'Feb. 18, 1913.

avweuto'o HENRY B. HUDSON, OF FARGO, NORTH DAKOTA.

NEEDLE-EYE S ELF-LOCILING SAFETY-PIN.

Application filed April 17, 1912. Serial No. 691,352

Specification of Letters Patent.

Patented Feb. 18. 19 13.

i To allfwhom it may concern 'the invention,

Be it known that I, HENRY B. Henson, a citizen of the United States, residing at Fargo,in the county of Cass and State of North Dakota, have invented a new and useful Needle-Eye Self-Lockin Safety- Pin and I do hereby declare the ollowing to be a full, clear, and exact description of such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to a new and useful safety pin, and particularly to one, the point of which is provided with a needle eye adapted to receive a lateral projection of the pin to hold the safety pin securely locked.

The principal object of the invention is to construct a safety pin of a single length of spring wire to construct it to form a coil at one end, and curved to form a head at the other end. The head portion of the pin terminating in a laterally extending arrowshaped projection, adapted to enter an elongated eye in the inserting portion of the pin, the eye being tapering at one end so that as pressure or strain is increased upon the inserting portion, more securely the inserting portion will become locked.

A further object of the. invention, is the provision of a needle eye locking safety pin, that may be adapted for use upon brooches, belt buckles, badges, shirtwaist sets, barrett'es, and other like articles.

In addition to the above applications of the improved safety pin, it has been found that a pin of this design serves an excellent purpose, when constructed for use in connection with horse blankets and the like, for this character of use exerts or imposes the greatest strain upon the pin, and when such is the case, the more securely the pin becomes locked.

The drawing illustrates and the specification describes one particular structure, to which the invention is in no way restricted. The inventor reserves the right to make alterations, which practice may demand, provided the alterations are comprehended within the scope of what is claimed.

The invention comprises further features and combination of parts, as hereinafter set forth, shown in the drawings and claimed.

In the drawings :--Figure I is a view in perspective of the improved safety pin constructed in accordance with the invention.

Fig. 2 is a similar view showing a larger safety pin, adapted more particularly as a horse blanket pin. Fig. 3 is an enlarged detail View of the inserting portion of tliepin and the arrow head.

As to the accompanying-drawings Ldesignates the single piece of spring wire, coiled upon itself to forts the coil 2 at one end of the pin, so as to provide the body 3 of the pin and the inserting portion or pin point 4. The body 3 of the pin is curved upon itself to form the head 5 of the pin, to which is fitted or clam ed a sheet metal shield or hood 6. This ood clamps substantially entirely about the circumference of the head 5 of the pin, as shown in Fig. 5. The-two sides 7 and 8 of the shield form a trough or the like 9, to receive the extreme point portion 10 of the insertin portion of the pin, as clearly disclosed in t e drawin The side 8 of the hood 6 forms a guide we 1 11, with which the extreme point portion of the inserting portion contacts, when the inserting ortion is disposed in a position immediat y above the substantially arrowshaped lateral projection 12 of the head 5, so that as the inserting portion 4 is allowed to spring in an outward direction from the body 3, the elongated eye 13 of the inserting portion will receive the lateral projection 12. However, when the arrow-shaped lateral projection enters the eye, it passes through the larger portion 14 thereof, and when the inserting portion 4 is permitted to spring in place as shown in Figs. 1 and 2, the narrow portion 15 of the arrow-shaped projection assumes a position in the tapering portion of the eye, so that the inserting portion will be locked securely and frictionally in place. It will be noted that as pressure or strain is increased on the inserting portion more securely the same will become locked. The tapering portion of the eye is designated by the character 16. When the parts are thus locked the opposite sides 12 of the arrow-shaped projection overlie the sides of the tapering portion 16 of the eye,

thus preventing the inserting portion from being accidentally disconnected in an upward direction.

To detach or remove the eye from engagement with the lateral rojection 12, it is necessary to straighten t e inserting portion 4, so that the arrow-shaped portion of the projection 12 will pass through the larger portion 14 of the eye. The coil 2 of the safety pin, it will be noted also assists in per-' it will be observed, a novel and. eflicient safet pin lock, andone which has been foun ractical and desirable.

The invention having been set forth, what is claimed as new and useful is A safety pin constructed of a single length of spring wire having a body curved at one end to form a head and provided with -an inserting portion which terminates in over-lapping relation to the head, the inserting portion having an elongated eye tapering toward the point of the inserting portion, the curved head terminating in a laterally substantially arrow-shaped projection extending toward the opposite side of the curved head and adapted to enter the larger portion of the tapering eye when first connecting the inserting portion to the projection, and adapted upon outward spring 5 of the inserting portion to wedge frictionally into the tapering portion of the eye thus frictionally locking the parts, the laterally extending projection having the opposite sides of lts arrow-shaped portion overlying 30 l the converging sides of the tapering portion of the elongated e e, thus preventing upward movement 0 the inserting portion, thereby doubly locking the parts.

In testimony whereof I have signed my 35 name to this specification in the Presence of two subscribing witnesses.

HENRY B. HUDSON.

VVit-nesses:

FRANK R. Soo'r'r, W. L. DAY. 

